User Manual
Option Card Slot 
The Symphony I/O Mk II has an option card slot for further expansion capabilities. 
Pro Tools HD Option Card 
The Pro Tools HD option card enables the Symphony I/O Mk II to connect directly to a Pro Tools HD System. 
Any Pro Tools HD System that is compatible with an AVID HD I/O will be compatible with a Symphony I/O Mk II. 
To connect a single Symphony I/O Mk II to your Pro   To o l s   H D X   o r   H D   N a t i v e   h a rd w a re, simply connect Symphony I/O 
Mk II’s Option card mini DigiLink port directly to any available port. 
Note you can not connect Symphony I/O Mk II to an Avid interface. Avid interfaces and Symphony I/O Mk II interfaces 
must be connected to separate ports. 
Once hardware connections have been made, launch Pro Tools software. 
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If a single I/O module is installed, then Symphony I/O Mk II appears in Pro Tools Hardware Setup as a single HD I/O. 
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If two I/O modules are installed, then Symphony I/O Mk II appears in Pro Tools Hardware Setup as two HD I/Os. 
Symphony I/O Mk II to Pro Tools HDX 
Symphony I/O Mk II to Pro Tools HD Native PCI 
Symphony I/O Mk II to Pro Tools HD Native 
Symphony I/O Mk II to Pro Tools Accel Core (requires mini-DigiLink adapter, not included) 
SYMPHONY I/O MK II - USER’S GUIDE Page 23
HDX
PORT 1 PORT 2
PORT 1 PORT 2
Accel Core










